Method of producing card assemblies



Feb. 24, 19x42.v QA, BERGSTEN l232745355 l .METHOD oF PRODUGING GARD ASSEMBLIES Filed Augyze. 193e Figi,

' .bf-'f-----A-J Patented Feb. 24, I19,42

UNITED- STAT l METHOD or PRODUCTNG clim)v AssEMBLiEs Charles A. Bergs'ten, Evanston, Ill., assignor-to4 Ditto, Incorporated, Chicago, Ill., a corporation of West Virginia Application August 26, 1936,

2 Claims.

Th'e invention relates to a `method of producing assemblies of cards or sheets.

' One form of the invention is embodiedin an.l

preferred form of the invention, the adhesive extends from the lateral. edges ashortdistance betweenthe cards. The cards may be separated from eachother readily, but are secured to each other. with sufficient tenacity to permit them to be runjas an assembly through va duplicating machine whereby data may be duplicated upon the exposed strips of the cards from a master sheet. Of course,y lthe assemblies may also be r-unthrough printing devices, such as typewriting machines, to-have data printed upon the exposed strips. At times, it isnecessary to curve the assembly partly around a roller o r a duplicating drum. This may be done without causing the cards to become detached from each other.

In practicing the improved method, the cards are assembled in overlapping relationship and the lateral edges to which the adhesive is applied are slightly separated so that .when the adhesive is applied, a small amount of it will flow between these lateral edges.

For convenience in shipping and handling, as well as storing the improved assemblies, they may be rolled around a mandrel, orI the equivalent. Thus, an assembly, may be made of any desired number of cards and th'en wound around a mandrel so that an assembly of a lesser numserial No. 98,077

(ci. 2er- 21) anismfor applying adhesive to the lateral edges of a. series of cards to produce the assembly shown in Fig. 1.

.Fig. 5 is' a section taken on 4, and l Fig.- 6 is a perspective view of an assembly of cards or sheets of paper, embodying the invention, -which assemblyis wound around a mandrel. Y

' While it has been pointed `out above that the improved `assemblies of cards or sheets are particularly adapted to be employed in connection with' duplicating machines employing master sheets, or the equivalent, it is to be understood that the exposed strips of the cards may be written or typewritten upon and that the Vinveniine 5-5 of Fig.

tion is limited to the uses set forth only to the` u extent indicated yin the appended claims.

. `In this' disclosure, the words cards and sheets are employed interchangeably.

Referring for the present to Figs. 1 to 3, inclusive, of the drawing wherein a preferred embodiment of the invention is disclosed, it will l be noted that the assembly I0 of cards Il shown ber of cards may be unwound and separated from `the remainder of the roll at any time.

Other objects and ,advantages of the invention will become apparent as the following description progresses, reference being had to the accompanying drawing, wherein- Fig. 1 is a face view of an assembly of cards or sheets of paper, which assembly embodies the invention.

Fig. 2 is a side elevation of the assembly in Fig. 1.

Fig. 3 is an enlarged fragmentary section taken on line 3-3 of Fig. 1.

Fig. 4 is a fragmentary plan elevation of mechshown in Figs. 1 to 3, inclusive, has the individual cards Il lsuperimposed upon each other in overlapping relationship so that the relatively narrow strip I2 of each of the cards is exposed and may have data duplicated, written or otherwise imprinted thereon. In the use of the assembly as shown in Fig. 1, the typing or other printing may be placed on the top edges of the cardsas shown; alternatively, the assembly may be turned around transversely for Vreceiving the printing at the bottom edges of the cards.

The cards Il are secured to each' other by a coating I2a of any suitable adhesive applied to the lateral edges of the cards Il along one side of the assembly. As best illustrated in Fig. 3, the coating I2a of adhesive penetrates between overlapping cards a Islight distance to insure that the cards will adhere to each other even though th'ey are handled somewhat roughly.

Referring now to Figs. 4 and 5 wherein the improved method of applying the adhesive to the cards Il to form the assembly l0 isillustrated, the reference character l5 designates a receptacle for holding a supply of adhesive I6. Ihe bottom Wall I1 of the receptacle l5 is apertured as at I8 so that the adhesive i6 may flow there` the remaining portions of the cards being supported upon a table 23 and a second guide member 24, which guide member 24 engages the bottom ,surfaces of the cards while they are being advanced. Disposed adjacent the L-shaped guide member 22 and engageable by the cards II while they are being advanced is a guide member 25 having a relatively long notch 26 formed in it.

The cnstruction shown in Figs. 4 and 5 is such that when the cards II have been assembled tor occupy the positions wherein they are shown in Fig. 1 and are advanced as a unit over the table 23 and the second guide member 24 as illustrated in Figs. 4 and 5 so that adhesive may flow through the aperture I8 against the adjacentedges of the cards, the guide member 24 will co-operate with the guide member 22 to flex the cards I I as illustrated in Fig. 5 so that as they pass the aperture I8 they will separate slightly to permit the adhesive I6 to ow a slight distance between them. The distance the cards separate from each other is controlled by the shape of `the'notch 26 in the guide member 25.

After the adhesive coating I2 has been applied to the cards, they are permitted to dry. In the preferred form of the invention; the adhesive coatings I2 are subjected to heat to hasten the drying step.

Any suitable adhesive I6 maybe employed, it being preferable, however, to employ an adhesive oi a quick drying type.

It will be noted that in the preferred embodiment of the invention, the cards II of the assembly IIJ are secured to each other solely by the adhesive coating I2a which, in this instance, extends a slight distance between the cards. I

I t will be noted that in the preferred embodiment of the invention illustrated in the drawing, the cards I I are of substantially identical dimensions. However, it is to be understood that in some forms of the invention, cards of unequal dimensions may be superimposed over each other in overlapping relationship.

Referring to Fig. 6, the reference character 3U designates a mandrel, such as a roller of wood. around which an assembly I0 of cards is wound.

There may be any desired number of cards I I in the assembly I0 wound upon the mandrel 30 and it will be readily understood that any lesser number of cards may be unwound from the roll thereof and detached therefrom for use as desired. The wound assembly shown in Fig. 6 provides a convenient method of storing, shipping and handlf'ngv the improved assemblies.

While I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes, therefore in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my invention as broadly as possible, in view of the prior art.

I claim:

1. The method of forming an assembly of cards secured together in superposed overlapping relationship which comprises: assembling the cards in said relationship with one edge of each in alignment at one edge of the assembly; causing relative movement between said edge ofthe assembly and a source of adhesive while causing slight separation of said edges at the progressively changing portion of said edges opposite said source; and causing adhesive to flow from said source to penetrate slightly between the separated edges.

2. The method of forming an assembly of cards secured together in superposed overlapping relationship which comprises: assembling the cards in said relationship with one edge of each in alignment at one edge of the assembly; moving the aligned edges of the assembly past and closely adjacent a source of adhesive; causing slight separation of the cards at their edges by virtue of the resilience thereof and promptly restoring contact therebetween as the cards are moved; Said separation being produced at the location of said source of adhesive; and causing adhesive to flow from said source to penetrate slightly between .the cards at their edges.

CHARLES A. BERGSTEN. 

